Zhuang Zhi was over sixty years old, and although he appeared amiable and righteous on the surface, he was actually a lecherous creep with a keen interest in women. Despite Gao Shuxian's utter dislike for him, she had to ingratiate herself with him as she needed his help.
What made Gao Shuxian grit her teeth in hate was that, although Zhuang Zhi had a liking for women, he wouldn't easily let lust cloud his judgment. If a female disciple from the Martial Academy sought his help but couldn't offer sufficient cultivation resources as a reward, he would demand that she cultivate with him physically.
While Zhuang Zhi's demands were excessive, they were mutually agreed upon, and some female disciples, eager for his assistance, would only be able to embrace and submit to him.